The coprocessor thread stopped i

作者: shengjk1 | 来源:发表于2020-02-02 16:33 被阅读0次

    背景: 前端在查kylin时,scan timeout
    CDH5.10 kylin1.6

    错误如下:
    2017-07-20 17:03:18,360 INFO org.apache.kylin.storage.hbase.cube.v2.coprocessor.endpoint.CubeVisitService: The cube visit did
    not finish normally because scan num exceeds threshold
    org.apache.kylin.gridtable.GTScanExceedThresholdException: Exceed scan threshold at 393073
    at org.apache.kylin.storage.hbase.cube.v2.coprocessor.endpoint.CubeVisitService1.hasNext(CubeVisitService.java:258) at org.apache.kylin.storage.hbase.cube.v2.HBaseReadonlyStore11.hasNext(HBaseReadonlyStore.java:111) at org.apache.kylin.gridtable.GTAggregateScanner.iterator(GTAggregateScanner.java:139) at org.apache.kylin.storage.hbase.cube.v2.coprocessor.endpoint.CubeVisitService.visitCube(CubeVisitService.java:290) at org.apache.kylin.storage.hbase.cube.v2.coprocessor.endpoint.generated.CubeVisitProtosCubeVisitService.callMethod(

    原因3点:
    说白了就是kylin关于hbase的3个参数:
    kylin.query.scan.threshold
    kylin.query.mem.budget
    kylin.query.coprocessor.mem.gb
    任何一个参数不达标都会报regionserver 都会报org.apache.kylin.gridtable.GTScanExceedThresholdException: Exceed scan threshold ,而前端查询kylin是timeout

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